Grandstream DP720 Dect Cordless VoIP Telephone Supported by Grandstream's dp750 dect base station 5 dp720 handsets are supported by each dp750 Supports up to 10 sip accounts per handset Supports a range of 300 meters outdoors and 50 meters indoors from the dp750 base station Full HD audio on both the speakerphone and handset DECT authentication & encryption technology to protect calls and account